Answer
By Arun AgrahriLast reviewed 2 timecoded sources
Short answer
No verdict: nothing on tape counts toward this claim, and Precis has read no study comparing the two forms for sleep. In remarks not counted here, the sources treat them as close. One calls bisglycinate at least on par with threonate for sleep; another takes glycinate at night because glycine itself helps.
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The verdict on Magnesium overall. 8 sources: 6 positive, 2 partly
positive partly neutral negative Each researcher and each study counts once per claim, however often they come up.
Magnesium glycinate is a better form for sleep than magnesium threonate.
No counted mention yet.
Researchers say
No researcher counted yet.
Studies show
No study counted yet.
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Nothing on tape counts toward this claim, so there is no verdict, and Precis has read no study comparing the two forms for sleep. Three mentions sit on the claim uncounted. Everything below comes from those and other remarks Precis has not counted.
Andrew Huberman, on a solo episode, says bisglycinate is not known to enhance cognition the way threonate is said to. For falling asleep and sleeping deeper, though, it seems at least on par with threonate. Threonate, he says, is typically taken 30 to 60 minutes before bed.
In an interview with Rhonda Patrick on his show, he calls the two interchangeable for sleep, a host's remark that is not counted.
Patrick, in that interview, takes glycinate or bisglycinate for sleep, because glycine itself is good for sleep. For cognition, she points to threonate.
On another solo episode, Huberman says threonate seems to be among the more bioavailable magnesiums and useful for sleep. He also says a friend who tried it at a very low dose got stomach cramps and stopped.
Threonate is marketed on the idea that it gets into the brain more easily. On her own channel, Patrick notes that in humans even a 300% rise in blood magnesium changes the magnesium in the fluid around the brain by less than 19%. Threonate's easier entry, she says, rests on a small number of animal studies.
In a talk, she says people who take only threonate are missing out and should also take glycinate or malate.
Precis has read no trial that gives people glycinate or threonate and measures their sleep. The comparison rests on uncounted remarks.
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